Examine source code of Dicoding Submission Date

{
  "manifest_version": 2,
  "name": "Dicoding Submission Date",
  "description": "Display Dicoding Challenge/Academy Submission Date",
  "version": "1.1resigned1",
  "icons": {
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "applications": {
    "gecko": {
      "id": "dicodingsubmissiondate@shidec.com"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.dicoding.com/*"
      ],
      "js": [
        "dicoding_ext.js"
      ]
    }
  ]
}